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WS 2000 Wireless Switch System Reference Guide5-10
The WEP 128 encryption mode allows devices using 104-bit key and devices using 40-bit keys
to talk to each other using 40-bit keys, if the 104-bit devices permit this option.
1. Choose between the WEP 64 (40-bit key) and WEP 128 (104-bit key) option by selecting the appropriate radio button.
2. To use WEP encryption with the No Authentication selection, click the
WEP Key Settings button to display a sub-screen for entering keys.
3. When finished, click the Ok button to close this screen.
4. Specify a Pass Key and click the Generate button. The pass key can be
any alphanumeric string. The switch, other proprietary routers, and Symbol
cards in mobile units (MUs) use an algorithm to convert an ASCII string to
the same hexadecimal number, but this conversion is not required for a
wireless connection.
5. Use the Key #1-4 fields to specify key numbers that use 26 hexadecimal
characters. Select one of these keys for active use by selecting its radio
button. Four different keys can be specified, allowing each WLAN to have
a different key.
6. Click the Apply button on the WLAN Security screen to save changes.
Configuring WPA-TKIP Encryption
Wi-Fi Protected Access (WPA) is specified in the IEEE Wireless Fidelity (Wi-Fi) standard, 802.11i. This security standard
provides more sophisticated data encryption than WEP. WPA is designed for corporate networks and small-business
environments where more wireless traffic allows quicker discovery of encryption keys by an unauthorized person.
WPA’s encryption method is Temporal Key Integrity Protocol (TKIP). TKIP addresses WEP weaknesses with a re-keying
mechanism, a per-packet mixing function, a message integrity check, and an extended initialization vector. WPA also
provides strong user authentication that is based on 802.1x EAP.
1. Select the WPA-TKIP radio button to enable Wi-Fi Protected Access (WPA) with Temporal Key Integrity Protocol (TKIP).
2. To use WPA-TKIP encryption with 802.1x EAP authentication or the No Authentication selection, click the WPA-
TKIP Settings button to display a sub-screen for key and key rotation settings.
3. Check the Broadcast Key Rotation checkbox to enable or disable the broadcasting of encryption-key changes to
mobile units.